Kevin Winter/Getty Images(LOS ANGELES) -- With his new movie Cowboys & Aliens barely beating The Smurfs at the box office, Harrison Ford told Conan O'Brien Monday night on Conan that he has a bone to pick with those little blue dudes.

Adding insult to injury, Ford told O'Brien that his wife, Calista Flockhart, took their son to see The Smurfs over the weekend.

"That doesn't seem right -- that's the movie that's up against you this last weekend," O'Brien offered. "So some of the money that went to The Smurfs came from your son."

"We're going to try and get it back," Ford deadpanned.

Ford got some much-needed revenge, however, taking out his aggression on a Papa Smurf doll by tearing its head off on camera.

-- Cowboys & Aliens: Iron Man director Jon Favreau turns back the clock with an alien vs. cowboy battle set in the Old West. Daniel Craig plays an amnesia-stricken man who's treated as an outcast until a powerful shackle he wears on his wrist proves to be useful in the fight against the alien invasion. Harrison Ford and Olivia Wilde also star in this adaptation of a graphic novel. Rated PG-13.

-- The Smurfs: The tiny blue creatures stumble out of their mushroom village and into New York City, though they're still being chased by the evil Gargamel. Jonathan Winters, George Lopez, Katy Perry, Fred Armisen, Anton Yelchin and Alan Cumming lend their voices to the Smurfs. Neil Patrick Harris, Glee's Jayma Mays, Sofia Vergara and Hank Azaria are part of the live-action cast. The Smurfs is screening in 3D. Rated PG.

-- Crazy, Stupid, Love.: With his marriage having fallen apart, Steve Carell's Cal re-enters the dating scene with the help of a good-looking younger man, played by Ryan Gosling. Julianne Moore, Emma Stone, Marisa Tomei and Kevin Bacon also star. Rated PG-13.

Paul Zimmerman/WireImage(NEW YORK) -- The Smurfs. They’re little blue beings three apples high. While they prepare for the Blue Moon Festival, the evil wizard Gargamel, played by Hank Azaria -- who does the best he can with the material he's given -- is obsessed with extracting all the CGI smurfy essence he needs to become the most powerful wizard in the world. When Clumsy Smurf accidentally leads Gargamel and his evil cat Azrael to the village, Papa Smurf, Smurfette, Brainy, Gutsy and Grouchy are sucked through a vortex that drops them off in New York City's Central Park. Gargamel and Azrael give chase and are soon running through Central Park, hunting for little blue creatures. Fortunately, in New York this is considered normal.

Clumsy comes across Patrick Winslow, played by Neil Patrick Harris, the newly-minted head of marketing for a cosmetics company run by Sofia Vergara's shrewish Odile. Odile threatens to fire Patrick if he doesn't deliver with his first assignment. As if he doesn't have enough to worry about already, his wife, played by Glee's Jayma Mays, is pregnant. Of course, his life is turned upside down when he inadvertently brings home some new blue friends.

The funniest moments in The Smurfs belong to Azaria and Vergara. In fact, a major weakness of The Smurfs is that there isn't enough Vergara. Another weakness is casting NPH as the straight man, which means his deep well of comedic talent goes untapped. Instead, The Smurfs relies heavily on slapstick and sight gags, which generally fail. There are some clever meta jokes, such as having Smurfette, voiced by I Kissed a Girl singer Katy Perry, stating "I kissed a Smurf, and I liked it," or having Gargamel point out how weird it is to have only one "Papa" Smurf and 99 sons. However, using "smurf" as a prefix, suffix, adjective, noun and verb quickly becomes a tired joke.

The Smurfs is an entertaining movie for little kids but it has no clear, discernible life lesson. It's not particularly entertaining for adults and does little to satisfy anyone who may see it to satisfy Smurf nostalgia.

Frazer Harrison/Getty Images(NEW YORK) -- We’ve now gotten our first glimpse of Katy Perry making her big-screen debut as Smurfette in the upcoming film The Smurfs, due this August.

The trailer for the movie is now online and starts off on a deceivingly serious note, making the film look like a flick about an alien invasion. But it quickly turns comedic by revealing that mysterious glowing lights and streaks in the sky of New York City are being caused by the arrival of the blue Belgian creatures, including Perry's Smurfette.

In the trailer, Perry plays Smurfette as sweet and coy, in a scene that mimics Marilyn Monroe's famous "billowing skirt" scene from The Seven Year Itch. The trailer also features the movie's live-action stars Neil Patrick Harris and Glee's Jayma Mays.﻿